> Is it ok to speak in code, like a numbers station? Good question. Probably yes but don't pin me on it. > What about speaking in Navajo, like the Americans d

> Is it ok to speak in code, like a numbers station? Good question. Probably yes but don't pin me on it. > What about speaking in Navajo, like the Americans did in ww2? Definitely 100% ok as long as you transmit your callsign in NATO english or send it in morse code. A language is not encryption. The ham community is super international. It's not a US English only thing. It might cause some grumbling in your local area but it's not illegal. Especially now that repeaters are often connected to the whole world.